[Mailmunge] Spec file to build Mailmunge RPMS

[Kenneth Porter]

--On Friday, June 10, 2022 9:15 AM -0400 Dianne Skoll via Mailmunge 
<mailmunge at lists.mailmunge.org> wrote:

> Ah... hmm... right now, there's no spec file; there's a
> spec/mimedefang.spec.in file; ./configure creates spec/mimedefang.spec
> by substituting the version number.
>
> I suppose we could ship a spec file with the version number already in
> place and symlink it to the top level to allow rpmbuild -tb to work.

I figured "make dist" (which follows ./configure) would include the 
generated spec file. I didn't think to check the tarball to see that it was 
missing. So it might not need to be in the root directory after all. It 
just needs to be created by "make dist".